Refrigerator trap



Patented July 11, 1933 outrun time PATENT erpm i;

- JAMES zine-at rosin, orrounnu LAC, Wisconsin, Assrsrton To 'roBin w re DIE inc, FOND'LU rec, Wisconsin, i ooeroanrron or WISCONSIN parts being shown in coiuriii REFRIGERATOR TRAP Application filed June 18,

The invention relates to refrigerator-traps and has for an object the provision of a trap of this type which can be easily installed, readily cleaned and economically manufactured, and which is of such construction-as to avoid loss of parts during shipment and installation. I f

Another object of the inventionis to provide a refrigerato trap inwhioh. condensa; tion collecting on exterior of the drainage conduit is dischifiged into the trap and thus prevented from accumulating in the refrigerator.

The invention further consists in the eral features hereinafter s particularly defined by the annexed claims.

In the accompanying c ra ving, Fig. 1 1s a sectional elevation or" a refrigerator trap embodyin g the invention. 7

Fig. 2 is a detail view of a drain tube as sembly for the trap. V

F ig. S is a top plan view of a sealing member of the trap, parts being broken away and section, and,

Fig. 4% is sectional view taken along the line H of Fig. 2.

In the drawing, the numeral 10 designates the bottom wall of a refrigerator having formed therethrough bore'or opening 11. A trap cup 12 'ithin the refrigerator rests on the bottom wall 10 and has a reduced central outlet pipe 13 wh ch removably enters the opening 1. let pipe extends annular liqu the surroun mg 7 cup. The trap cup is preferably formed of a singie sheet metal stamping hearingreentrant intermediate portions defining the inner walls of the annular sealing well.

The usual ice compartment, not shown, is spaced above the bottom wall of the refrig} erator and is provided with a depending drip pipe 15 in vertical alignmentwith the trap cup 12. A drain tube 76 extends between the drip pipe 15 and the cup 12 and at its upper end is loosely telesooped over the drip pipe 15.

The lower end of the drain tube 16 is supported on the flaring outer surface of a bell sevforth and more 1922. 'Serial Ito-617,942.

shaped sealing hood 1? which has its lower I edge surrounding the upper end of the trap cup outlet pipe 13 and extending into the sealing weil 14 of the cup. The outersurface of thesealing hood is provided with radiallyextendingridges 18 on whichthe lower edge or the drain pipe 16 rests Wit-l1' outobstructing drainagen The lower rim portion. of the sealing hood carries spaced feet 19 which r-eston the v cup; The sealing hood is preferably formed by a singlesheet metal stamping. An annular sheetfmetal cover 20 is slid ablyinounted on the drain tube 16 and has a flange 2lresting on the upperedge of the trap cup, and a depending skirt 22 which slidably fits within thetrap cup. The cover has i a dished portion 23 loosely surrounding the drain tube so that condensation collecting on and flowing down the exterior of the drain tube will drain into the trap cup, thus preventing the condensation from accumulating in the refrigerator. Condensation collecting on the exterior of the drip pipe 15 will drain into the drain tube 16. V In order to avoid loss of the sealing hood l7 and to facilitate installation of the trap, the sealing hood is attached'tothe lower end of the drain tube 16. In the present instance the sealing hood has an upper cylindrical portion :Zof reduced diameter received in the lower end of the drain tube 16.- Verti cal extensions of the ridges 18 are formed on the cylindrical portion 24 and frictionall engage the inner surface of the drain tube to firmly retain the sealing hood on the tube, the walls of the drain tube being s0me what resilient to insure the retention of the sealing .hood. In assembling the sealing hood onto the drain tube it is only necessary to push the're'duced end of the hood into the tube, and when thetrap is to be cleaned the sealing hood can be withdrawn from the tube. The sealing hood when in place on the drain tube prevents withdrawal of the cover 20 from the lower end of the tube, and an embossrnent formed on the upper portion of the drain tube prevents withdrawal of the cover from the upper end of the tube. The drain tube, cover, and sealing hood thus bottom wall of the ator and form a unit assembly, as seen in Fig. 2, avoidlowered to bring the sealing hood into operative position within the trap cup, the cover being slid downwardly onto the cup to enclose the li uid space in the cup and to center the hooc within the cup. In some instances, the trap cup may be set in place after the drain tube is slipped over the drip pipe.

IVhen the trap is to be cleaned it can easily be removed from the refrigerator, the drain tube assembly being lifted bodily from the trap cup and then swung laterally out of alignment with the cup, and the sealing hood being subsequently withdrawn from the tube. After the trap is cleaned it can easily and properly be replaced in the manner above described.

That I claim as new and desire to secure by Letters Patent is:

1. In a refrigerator trap, the combination of a trap cup having a liquid space, a drain tube mounted above said trap cup and having resilient walls, and a sealing hood havdrain tube, and a sealing hood having an upper portion inserted in the lower end of said tube and frictionally engaging the inner walls of said tube to secure together the tube and hood, there being a liquid passage between said hood and the inner wallsof said tube.

3. A sealing hood for a drain trap, comprising an inverted cup-shaped member having a reduced upper end adapted to be inserted into the lower end of a drain tube and provided with spaced projections frictionally engageable with the inner walls of the tube.

In testimony whereof I affix my signature.

JAMES HENRY TOBIN. [n 5.]

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